Biochemistry (Looseleaf)
9th Edition
ISBN: 9781319114800
Author: BERG
Publisher: MAC HIGHER
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Chapter 26, Problem 28P
Interpretation Introduction
Interpretation:
The mechanism involved in the conversion of hydrophobic odorants into the water-soluble derivatives which can be quickly removed should be determined.
Concept introduction:
The steroid can be defined as a
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Chapter 26 Solutions
Biochemistry (Looseleaf)
Ch. 26 - Prob. 1PCh. 26 - Prob. 2PCh. 26 - Prob. 3PCh. 26 - Prob. 4PCh. 26 - Prob. 5PCh. 26 - Prob. 6PCh. 26 - Prob. 7PCh. 26 - Prob. 8PCh. 26 - Prob. 9PCh. 26 - Prob. 10P
Ch. 26 - Prob. 11PCh. 26 - Prob. 12PCh. 26 - Prob. 13PCh. 26 - Prob. 14PCh. 26 - Prob. 15PCh. 26 - Prob. 16PCh. 26 - Prob. 17PCh. 26 - Prob. 18PCh. 26 - Prob. 19PCh. 26 - Prob. 20PCh. 26 - Prob. 21PCh. 26 - Prob. 22PCh. 26 - Prob. 23PCh. 26 - Prob. 24PCh. 26 - Prob. 25PCh. 26 - Prob. 26PCh. 26 - Prob. 27PCh. 26 - Prob. 28PCh. 26 - Prob. 29PCh. 26 - Prob. 30PCh. 26 - Prob. 31PCh. 26 - Prob. 32PCh. 26 - Prob. 33PCh. 26 - Prob. 34PCh. 26 - Prob. 35PCh. 26 - Prob. 36PCh. 26 - Prob. 37PCh. 26 - Prob. 38PCh. 26 - Prob. 39PCh. 26 - Prob. 40PCh. 26 - Prob. 41PCh. 26 - Prob. 42PCh. 26 - Prob. 43PCh. 26 - Prob. 44PCh. 26 - Prob. 45PCh. 26 - Prob. 46PCh. 26 - Prob. 47P
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- Assighment. Create a diagram which illustrates the typical signalling mechanism of action of each of the four common classes of receptor (e.g. kinase-linked receptors etc.) and possible routes of communication (autocrine etc.). Your diagram should show the specific molecules involved, the mechanisms of signal transduction and indicate the different pathways that are activated. It should include a specific example of a receptor, ligand and signalling pathway for each general class. Include as wide a variety of ligands and modes of action as you can. For each of the examples describe the mechanism of action in the form below. DO NOT use any of the ligand-receptor combinations provide to you in the Learning Materials to date - research and create a diagram for a novel pathway instead!arrow_forwardInducers and Inhibitors of AEP. Short peptides such as legumain stabilization and activity modulation (LSAM) domain and αvβ3 integrin could enhance the activity of AEP. LSAM domain known as the prodomain of AEP blocks substrate binding before activation. This prodomain has a helical structure and two independent peptides. One is an activation peptide (AP, K287 to N323), and the other is a LSAM domain. LSAM domain remains even after AP is cleaved and released from protease at neutral pH via electrostatic interaction. AEP without LSAM domain has a lower melting temperature than AEP with LSAM domain [77, 117]. Another short peptide, αvβ3 integrin, can directly interact with AEP, and after forming a complex, the optimal pH for AEP activity is increased from 5.5 to 6.0. It indicates that αvβ3 binding could induce conformational stabilization of AEP accompanied by deprotonated C189. αvβ3 does not directly interact with the AEP active site; however, AEP docks to the αvβ3 RGD-binding site…arrow_forwardSIGNALS AND TARGETS. Listed below are sample polypeptides/proteins with their signal molecule/peptide. Answer the questions that follow. If you are asked to give the amino acid sequence, provide the sequence using the three-letter names of the amino acids (eg. ser-ala-met). Protease with mannose-6-phosphate Where is the receptor for this protein located? Where is the final destination of this polypeptide? What happens to the receptor after protein transport?arrow_forward
- Ligand binding and response. The following question involves the ligand binding to a receptor and the receptor's response to that ligand. What ligand concentration would be required for a full agonist with a KD of 8 nM to achieve a response of 0.75?arrow_forward= 20 nM. The rate of receptor-ligand complex formation with an A receptor-ligand complex has a dissociation constant of Ka added ligand concentration of 10 µM is 5 × 10³ s¯¹. What is the value of the reverse rate constant, k_₁ ? k_₁ = 8-1arrow_forwardBreak down + function Acetyichaline.(Ach) receptors (eacn Fort)arrow_forward
- Dear Expert. Thank you for your advice, which is good and helpful. I note that your answer is "when 3 binding sites have been occupied the activity of these receptors is maximum." However, I also note that for a similar question (see below) on α7 nicotinic Acetylcholine Receptor (nAChR) also gives the same answer, ie. at least 3 agonist binding sites should be occupied. Another Question - "To maximize the activity of an α7 nAChR, how many agonist binding sites should be occupied." I understand that in α7 nAChR, binding to two sites is more effective and binding to three sites is most effective for activation. On the other hand, binding to four or five sites in the nAChRs of chromosome 7 speeds up desensitization more than activation. Therefore, to maximize the activity of an α7 nicotinic Acetylcholine Receptor (nAChR) is also "3 sites". Am I right?arrow_forwardMembrane Receptors and Medicine. A patient, who has a stressful job, comes in with high blood pressure. The doctor prescribes beta-blockers to the patient. Explain what beta-blockers are and how these drugs help to bring down blood pressure to normal.arrow_forwardOnly a few. Why do only a small number of sodium ions need to flow through the Na+Na* channel to change the membrane potential significantly?arrow_forward
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